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I have android 4.04 ice cream sandwich as it was pre installed. I have an archos 80 cobalt. How would I dual boot with ubuntu?
This might not be the exact solution to your problem because it installs a full desktop and not the mobile version, but this is what I had to do because my tablet isn't supported either.
Step 1: Root your tablet. Warning: This may void your warranty.
Here's some instructions for your particular tablet. (Please note that I haven't tried
Step 2: Download "Complete Linux Installer" by ZPWEBSITES from Google Play.
Step 3: Install your chosen flavor.